2022 – Semester 1 – Assignment 2 - 1st Attempt
Question 1:
Choose the most correct option. The item discrimination index and the item-total
correlation are measures of …
1. the frequency of choosing the correct response to an item
2. the predictive value of an item
3. differential item functioning
4. the extent to which an item measures the same aspect as the total test
Question 2:
Foxcroft (2004) provides guidelines for the development of a multicultural test (please see
study note 3 under additional resources on myUnisa). She distinguishes between three
approaches, namely theory-based/rational, empirical (criterion-keying), and criterion-
referenced methods.
The Senior South African Individual Scale – Revised (SSAIS-R) was based on the Wechsler
model of intelligence and the test consists of a variety of tasks that require intelligence. In
combination these tasks measure a general factor of intelligence consisting of two specific
factors, namely verbal and non-verbal intelligence. The content domain of the SSAIS-R
was thus defined by means of …
1. a job analysis
2. a theoretical review
3. contrasting groups
4. an analysis of learning outcomes
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